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    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
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<body>
    
</body>
<script>
    //循环遍历实现深拷贝
   /* var obj={name:'孙瑞',age:18,sex:true,hobby:['打球','听歌']}
function copyObj(obj){
    var obj2=Array.isArray(obj)?[]:{}
    for(var key in obj){
        if(typeof obj[key]=='object'){
            obj2[key]=copyObj(obj2[key])
        }else{
            obj2[key]=obj[key]
        }
}return obj2
    
    }
    var s=copyObj(obj);
    console.log(s);*/



    //json.pare(json.stringfy(obj))实现深拷贝
    /*var obj={name:'孙瑞',age:18,sex:true,hobby:['打球','听歌']}
    var obj2=JSON.parse(JSON.stringify(obj))
    console.log(obj2);*/


    //object.assign实现深拷贝
    var obj={name:'孙瑞',age:18,sex:true,hobby:['打球','听歌']}
    var obj2=Object.assign({},obj)
    console.log(obj,obj2);
</script>
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